Cometic C5667-120 Ford Series MLS Cylinder Head Gasket Bore - 385 4.500

The Cometic C5667-120 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Ford 385 Series big block engines. This high-performance gasket features a 4.500-inch bore diameter and a compressed thickness of .120 inches, making it ideal for performance builds and high-compression applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.500-inch bore diameter designed for Ford 385 Series engines (429, 460)
• .120-inch compressed thickness for precise compression ratio tuning
• Advanced material technology withstands extreme cylinder pressures and temperatures
• Eliminates the need for additional sealants in most applications
• Provides excellent rebound characteristics and conformability

Cometic MLS gaskets feature multiple layers of stainless steel with proprietary coatings that ensure a superior seal under the demanding conditions of high-performance engines. The gasket's construction allows it to adapt to minor surface imperfections while maintaining consistent clamping pressure across the entire sealing surface. This gasket is designed for use with properly prepared cylinder heads and blocks with a smooth surface finish (typically 50 RA or smoother recommended for MLS gaskets).